interco Birddog Wheel - inside Of Wheel - Photo 06

The specially designed bead also works as a fulcrum. With the weight of the vehicle forcing the inside away from the rim, the improved bead acts like a pivot, which forces the bead over so the foot of the bead stays sealed. While how well it seats varies by the amount of weight, force, and air pressure, we tried to dislodge the tire at 5 psi sliding sideways, with no loss of pressure, much less popping a bead.